A cobpobation of pennsyt



E. R. MEINIG wARP KNIT FABRIC Filed Deck '1o. 1924 July 3,1928. 1,675,506

7 5 ai )al *f4 ,6 26 .sa e

l. G 30 32 9 .f6 I 15 6 *vil ATTORNEYS Patented July 3, 1928.

UNITED STATES PATENT ori-Ica vIEBihTST RICHARD MEINIG, OF'WYOMISSING, PNNSYLVANIA, ASSIGNOR '.-DO E. RICHARD MEINIG C0., INC., F READING, PENNSYLVANIA, A CORPORATION 0F PENNSYL- vaNIa.

WABP lIKN' IT FABRIC.

Application led December 10, 1924. Serial No. 754,901.

My'invention relates to a new and improved warp knit fabric produceable on a usual warp knitting machine of the type commonly known as a Milanese machine, my ob'ect being to secure a desirable and hereto ore unattainable crepe effect in such fabric; and to this end my invention relates -more particularly to an improved loop or stitch formation creating uniforml spaced closely arranged raised and epressed stitches 'ving the desired crepe effect, such l stitches eing secured by a novel arrangement of warp groups of thick and thin thread and a special manipulation thereof by the vusual loop formin machine mecha,- nism as more fully descri ed hereinafter in connection 'with the accom anying drawings, the novel features thereof l eing particular y pointed out in the subjoined claims. y

Fig. 1 's a diagrammatic cross-sectional elevation indicating essential parts of a usual Milanese warp knitting machine employed in producing my new crepe Milanese cloth.

Fig. 2 is a diagrammatic view indicating my special la ing of the threads always over the needl es, and also indicating two heavy and two light threads of the u per warp tier crossing two heavy and two ight' 3 threads of the lower warp tier; the vertically disposed dots,7 representlng successive needle" courses of the one row emplo ed, andv the repeated showings being mere y to disclose theT passage of he threads h ig. 3 is a iagrammatic view s owin the spaced warp tiers and still bar pointsg, and indicating in heavy lines the cooperative movement of the traverse bar points.

Fig. 4 is an enlarged diagrammatic showin of the fabric, the thick warp being in icated by heavy lines and the interloop- 'ing of meeting heavy) upper and lower tier warps being shown y heavy dots, to indicate the close and regular spacing of the raised stitches peculiar to my new fabric.

Fig; 5 is a much enlarged showing of my fabric disclosing clearly the specialv loop stitch formation thereof. Warp .knitting machines are well known inthe art andl thosev in which the warp threads of the two parallel tiers are traversed so as to extend continuously throughout the length of the fabric in crossing diagonal interlooped lines reaching from fabric ed ve to fabric edge, are commonly known as ilanese war machines, and their product, a fine closely nitted, elastic material, usually ofsilk, is known as Milanese cloth. My invention, as stated, relates to such machines, andparticularly to producing such cloth haying a' crepe effect.

To those skilled in the art, the diagram'- matic crossl lsectional yiew of Fig. 1 will suliciently disclose such known Milanese machine and enable them to readily understand the changes in the operation thereof` required to produce my new crepe fabric.

Referring tov Fig. l, 5 indicates the usual f straight needle bar having a single lrow of closely set fine gauge-spring beard needles 6 adapted to receive the traversed warp threads and interloop the same in successive rowsV or courses of stitches in well known manner. Between each needle, as usual,

sinkers 7 are employed, held by upper and lower sinker bars 8 and 9, and moved by the latter to cooperate with said needles 6 in forming, holding,"and knocking oll the successive rows .or courses of warp stitches.

A needle presser bar 10,suitably operated in well known manner,f facts on the needle beards to close the hooked ends of the latter over a newly formed course of loops to ermit the knocking-oil of the previously ormed row of loops.`

The warp threads 15, as usual in Milanese machines, are Wound on bobbins or spools 16, and the latter are traversed in an endless path on the bed plate 17 in well known manner, as by carriages 18; such path comprising parallel strai ht-way portions extending the width ofthe machine withtheir ends united by'half-circle bends. The warp threads 15, 15'are carried to the needles 6- over upper tier bar 20 and' lower tier bar 21, each one receiving the warps of the bobbins in one of said vstraight-way portions, and a l usual divider/bar 23, supported by brackets 24 fromupper tier bar 20, maintains the war s in spaced relationl intermediate the nee les and .tier bars asiheretofore.

Adjacent said divider bar 23 is the usual still point bar 30, having points 31 projecting between the warps in the usual manner, and moved vertically only' as heretofore. The traverse bar 32, having points33 adapted to engage with points 31, ,is moved both vertically transversly, as lwell undersaid up reversely traverse the warps of r and lower tier; the usual traverse in ilanese machines being a distance of four needles to the right and back two needle distance, and again two needle disstood, to

tance when ,out of engagement with the warps.

In carrying .the traversed warps to the needles the usual picker point bar 35,

.having comb points 36, acts in the known Athe bobbins round the half-circle bends uniting the ends of. the way-portions oi their en be plate 17. f

The fabric produced onv such Milanese machine, above set forth, is close and smooth surfaced,and has no vsemblance of crepe appearance; After man experiments I have discovere arallel ,straightesspath on the that by arran ng the warps of diier'ent weights or thi esses of threads set in a particular relation to one another, and readjusting and timing the machine movements vand warp traverse so-that heavy warps 'of the upper tier will meet the reversely traversed heavy threads,gwh 1ch are -materi `thickness, are arranged throughout the v bestresults under an warps of thelower tier on the same needles, and likewise thelight vwarps of the upper tier will meet the light warpsof the lower tier on adjacent needles, I' can produce a l Milanese cloth having raised and depressed stitches .uniformly spaced and giving the lsought lfor crepe effect which is the object ofllliyinvenltlilli. h `accom ing my pu oses t e warp B :lilly different in endless layof the w in alternate oups of .thickand thin, said groupspre erably having the same number of threads; the with the usual uge of needles employed bentgnsecured, lind, by equal groups of two two thin warps. And v also find that the vusual warp traverse of over one under one needle, common in- Milanese machines, ywill not' accomplish my purpose, and I therefore reduce such warp traverse so that each thread will la over every needle'and never traverse ais clearly indicated in- 2, the successive courses or row -of stitches be'y indicated by re ting the row of n es 6,-and such gire indicates the meeting on the needles, 6",

.6, f the two .heavy 'threads of the upper warp'tier Wand lower :warp .tier 21, and the like meetingfon needles 6*, 6, of the thin threads of Asaid upper and lower tiers.V i

vThe movement' of traverse bar points 33 to and variedl ck war s alternating with cross each other in lwales o, o* row m.

secure this lay of the warp threads always over every needle is indicated by heavy black lines in Fig. 3, 20'al indicates the warps of the upper tier 21` the warps of the lower tier, 30 and 3l the still bar and its points pro]ecting throu h said upper and lower tiers which are eld separated b divider bar 23. Following the heavy blac lines in said Fig. 3, and beginning at a, the traverse points 33 rise through the lower warp ti'er 21* to b, said points are then traversed a distance of two needles to the right-to c uppertier 20, again they are traverse to the left' a distance of one needle to e, at which point the picker points 36' act, and traverse points 33 sink to f below both warp tiers, and then idly traverse back to a, the be inning` of 4their cycle of movement.'

e picker bar 36 now combs the warp tiers 20', 21 thus traversed and lays the same over the needles. 6 for their usual knitthiy then rise to d to engage the'waiis o but ting operation inv cooperation with sinkers 7 and needle presser bar 10, the result bein a fabric having raised uniformly dis ose stitches located at the meetingpoints o said heavyl pairs of the warp tiers as/ indicated `in F1 4. l

Reerringto Fig. 5, the stitch formation producing my novel cre e eiect isclearly seen, and in this figure e light horizontal lines m1, 'm2, ma &c. represent successive rows or coursesof stitches, the light vertical lines o1, o2, os &c. the wales produced by each needle, 20* the heavy or thick warps and 20b the light or thin war threads of the upper tier and 21* and 21 t e corresponding warp threads of the lower tier.

In order to more readily follow thel threads of the two'tiers, I have marked one pair of thick threads 20'* 20y and the adj acent pair of thin threads 2 0", 20b of the upper Atier with longitudinal dash lines, and'two corresponding adjacent pairs of the lower tier 21.,' 21'L and 21", 21b with stip lemarkin It will be noted that the thic pair. 2 0, 20* of the upper tier cross the thick pair 21",

'21* of the lower tier in wales o1, o row m,

and the corresponding pairs of thin threads of said two courses, 20", '20 and 21", 21"

pair 20", 20* cross the pair of lthick warps .adjacent to 21, 21 in wales o, 0*., row m,

while the air of thin warps 20, 20" cross the pair o thin warps adjacent 21", 21 in wales o1, o lrow m. The crossing of the thick threadsv produces raised fabric dots iiniformly spaced throughout. the fabricgand i is these raised portions combined with the depressed crossings of the thin threads, that gihves the desired crepe eil'ect sought for; in

e specific arrangement thus fully yshown and described. Other combinations in the warp groupings be employed, but from extensive experi- Y ments so far made, and with the usual needle spacings, I iind the best results are obtained by the use of alternately arranged pairs of threads, modification as to the degree of crepe elfect will result, and other changes and modifications of the specific arrangement and manipulation may be discovered within the vspirit of my invention as defined in the claims. lVhat I claim is`:- p y 1. As a new article of manufacture, a warp Y knitted fabric. formed of reversely traversed warp rows each having thick and thin warps,` the respective thick warps of said rows interlooping at vtheir crossing points to form latyerally and longitudinally separated thickened` fabric stitches.

.2. As a new article of manufacture, a warp knitted fabric formed of reverselytraversetl 4nating in successive courses to form uniwarp rows each having thick and thin warps,

1 p groups of thickand thin Warps, and like groups of one row looping with like groups of the other row, and saidloop groups alterl formly spaced thick and thin fabric stitches.

4. A warp knitted fabric formed of loops of two reversely traversed 4rows of warps, the latter arranged in alternate pairs of thick and thin Warps, and like pairs of one rovs1 looping with like pairsof the other row, and said loop pairs alternating in successive courses to form uniformly spaced thick and thin fabric stitches.

5. The method of producing aI crepe fabric on a traverse warp knitting machine having a single row of needles and two re-` ve'rsely traversed rows of warps engaged thereby, which consists in arranging 'the warps in alternating groups of thick andl thin threads, ltraversing the same so as to lap over each separate needle, engaging like warp groups of the respective rows on the same needles to forni alternate groups of thick and thin stitches, and alternating said groups in successive courses to form uni` formly spaced thick and thin fabric.

6. The method of` producing a crepe fab-- ric on a traverse warp knitting machine having a single row of needles and two reversely traversed rows of warps engaged thereby, which, consists in arranging the warps in alternating pairs of thick and thin threads, traversing the same so as to lap over each separate needle, engaging likev pairsof war s ofthe respective rows on the.

same pairs o needlesto form alternate pairs of thick and thin stitches,l and alternating.

said loop pairs in successive courses` to foi-m uniformly spaced thick and thin fabric.

In testimony-whereof I aiiix my signature.

, a ERNST RICHARD iffiinue. 

